Surface cleaning apparatus

Patent metadata

Field	Value
Publication number	US-10702116-B2
Application number	US-201715852052-A
Country	US
Kind code	B2
Filing date	Dec 22, 2017
Priority date	Sep 15, 2017
Publication date	Jul 7, 2020
Grant date	Jul 7, 2020

Abstract

A surface cleaning apparatus such as an extractor is operable in a floor cleaning mode which utilizes a floor cleaning fluid flow path. The surface cleaning apparatus is also operable in an above floor cleaning mode which utilizes a different above floor fluid flow path.

First claim

The invention claimed is:

1. An upright surface cleaning apparatus comprising:
a) a surface cleaning head having a first dirty fluid inlet;
b) at least one treatment unit comprising a first separation stage and a second separation stage that is downstream from the first separation stage, wherein the first separation stage comprises a liquid separator;
c) an upright section moveably mounted to the surface cleaning head, the upright section moveable between an upright storage position and a reclined surface cleaning position, the upright section having the second separation stage and an above floor cleaning member comprising a second dirty fluid inlet and a flexible hose;
d) a liquid deliver system extending from at least one fluid reservoir to at least one applicator nozzle;
e) a floor cleaning fluid flow path extending from the first dirty fluid inlet to a clean air outlet, the floor cleaning fluid flow path including the first separation stage, the second separation stage and a suction motor; and,
f) an above floor fluid flow path extending from the second dirty fluid inlet to the clean air outlet and including the second separation stage, the suction motor and the above floor cleaning member and excluding the first separation stage,
wherein the upright surface cleaning apparatus is operable in a floor cleaning mode which utilizes the floor cleaning fluid flow path and an above floor cleaning mode which utilizes the above floor fluid flow path.

2. The upright surface cleaning apparatus of claim 1 , wherein the flexible hose is isolated from the floor cleaning fluid flow path.

3. The upright surface cleaning apparatus of claim 1 , further comprising a valve that alternately connects the first dirty fluid inlet and the second dirty fluid inlet in flow communication with the second separation stage.

4. The upright surface cleaning apparatus of claim 3 , wherein the floor cleaning fluid flow path has a portion which extends from the first dirty fluid inlet to an outlet end that is upstream of the first separation stage and the above floor fluid flow path has a portion which extends from the second dirty fluid inlet to an outlet end that is upstream of the second separation stage and the outlet end of each of the floor cleaning and above floor fluid flow paths is located at an inlet portion of the valve.

5. The upright surface cleaning apparatus of claim 3 , further comprising a valve actuator drivingly connected to the valve and the above floor cleaning member is drivingly connected to the valve actuator whereby the valve is moved to a floor cleaning position in which the first separation stage is in flow communication with the first dirty fluid inlet when an inlet end of the above floor cleaning member is mounted to the upright surface cleaning apparatus and the valve is moved to an above floor cleaning position in which the second separation stage is in flow communication with the second dirty fluid inlet when the inlet end of the above floor cleaning member is removed from the upright surface cleaning apparatus.

6. The upright surface cleaning apparatus of claim 1 , wherein the upright section comprises a portable surface cleaning unit which is removably mounted to the upright surface cleaning apparatus, wherein the portable surface cleaning unit comprises the second separation stage and the suction motor.

7. The upright surface cleaning apparatus of claim 6 , wherein the portable surface cleaning unit is removable without the at least one fluid reservoir.

8. The upright surface cleaning apparatus of claim 7 , wherein the at least one fluid reservoir is part of the surface cleaning head.

9. The upright surface cleaning apparatus of claim 7 , wherein the portable surface cleaning unit is removable without the first separation stage.

10. The upright surface cleaning apparatus of claim 6 , wherein the portable surface cleaning unit is removable without the first separation stage.

11. The upright surface cleaning apparatus of claim 10 , wherein the first separation stage is part of the surface cleaning head.

12. The upright surface cleaning apparatus of claim 1 , wherein the flexible hose is isolated from the floor cleaning fluid flow path.

13. An upright surface cleaning apparatus comprising:
a) a surface cleaning head having a first dirty fluid inlet;
b) at least one separation stage comprising a first separation stage and a second separation stage that is downstream from the first separation stage, wherein the first separation stage comprises a liquid separator;
c) an upright section moveably mounted to the surface cleaning head, the upright section moveable between an upright storage position and a reclined surface cleaning position, the upright section having a portable surface cleaning unit which is removably mounted to the upright surface cleaning apparatus, wherein the portable surface cleaning unit comprises the second separation stage and an above floor cleaning member, the above floor cleaning member comprising a second dirty fluid inlet and a flexible hose and excludes the first separation stage;
d) a cleaning solution deliver system extending from at least one fluid reservoir to at least one applicator nozzle;
e) a floor cleaning fluid flow path extending from the first dirty fluid inlet to a clean air outlet, the floor cleaning fluid flow path including the first separation stage and a suction motor; and,
f) an above floor fluid flow path extending from the second dirty fluid inlet to the clean air outlet and including the second separation stage, the suction motor and the above floor cleaning member,
wherein the upright surface cleaning apparatus is operable in a floor cleaning mode which utilizes the floor cleaning fluid flow path and an above floor cleaning mode which utilizes the above floor fluid flow path.

14. The upright surface cleaning apparatus of claim 13 , wherein the portable surface cleaning unit is removable without the at least one fluid reservoir.

15. The upright surface cleaning apparatus of claim 14 , wherein the at least one fluid reservoir is part of the surface cleaning head.

16. The upright surface cleaning apparatus of claim 13 , wherein the first separation stage is part of the surface cleaning head.

17. The upright surface cleaning apparatus of claim 13 , wherein the flexible hose is isolated from the floor cleaning fluid flow path.

Assignees

• Omachron Intellectual Property Inc

Inventors

• Conrad Wayne Ernest
• Innes Daniel
• Udy Adam
• Burke Brian

Classifications

• B01D50/20

  Combinations of devices covered by groups B01D45/00 and B01D46/00 · CPC title

• A47L5/36

  Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back · CPC title

• A47L7/0004

  Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners (floor-scrubbing machines taking-up dirty liquid by suction A47L11/30) · CPC title

• A47L9/1608

  Cyclonic chamber constructions · CPC title

• A47L9/1625

  for series flow · CPC title